The Photodisintegration of the Deuteron at Intermediate Energies. I.

Creators: Barnes, C. A.; Carver, J. H.; Stafford, G. H.; Wilkinson, D. H.

Abstract

Measurements have been made of the absolute cross section for photodisintegration of the deuteron at six gamma-ray energies in a range where the photomagnetic effect is small compared with the photoelectric. The methods of determining the gamma-ray flux are described as are the high pressure deuterium-filled ionization chamber and proportional counter used to determine the disintegration rate. The results are given in the following table, together with the reactions used to provide the gamma-rays.

Additional Information

©1952 The American Physical Society. Received 14 December 1951. We would like to thank Dr. W.B. Lewis and the staff of the mass spectrometer group at the laboratory of the National Research Council of Canada, White River, Ontario, for their analysis of the deuterium; Dr. C. Sykes, of Messrs. Firth-Brown, Sheffield, who supplied and heat-treated the steel from which the outer shells of the ionization chambers were made; Sir John Cockcroft and Dr. J.V. Dunsworth, of the Atomic Energy Research Establishment, Harwell, for the graphite from which the graphite ionization chamber was made; Sir John Cockcroft and Dr. W.D. Allen for supplying us with the separated isotopes of many elements. C.A. Barnes, J.H. Carver, and G.H. Stafford wish to thank respectively the Commissioners of the Exhibition of 1851 and the National Research Council of Canada; the University of Cape Town and the South African C.S.I.R. for grants received in connection with this work.

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